Ballpoint pen



FIG. 1 is a perspective view of the ballpoint pen.

FIG. 2 is a front elevation view of the ballpoint pen illustrated in FIG. 1.

FIG. 3 is a rear elevation view of the ballpoint pen illustrated in FIG. 1.

FIG. 4 is a left side elevation view of the ballpoint pen illustrated in FIG. 1.

FIG. 5 is a right side elevation view of the ballpoint pen illustrated in FIG. 1.

FIG. 6 is a top plan view of the ballpoint pen illustrated in FIG. 1; and,

FIG. 7 is a bottom plan view of the ballpoint pen illustrated in FIG. 1. 

The ornamental design for a ballpoint pen, as shown and described. 